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<?php
declare(strict_types=1);
namespace Keruald\OmniTools\Collections;
use Keruald\OmniTools\Strings\Multibyte\OmniString;
/**
* A generic vector implementation to accept any kind of value.
*
* Vector offers specialized methods to convert from and to int/string.
*
* This class is intended to be used in every case a more specialized
* vector implementation doesn't exist or isn't needed, ie every time
* an array is needed, to contains ordered values, without string keys.
*/
class Vector extends BaseVector {
///
/// Specialized constructors
///
/**
* Constructs a new instance of a vector by exploding a string
* according a specified delimiter.
*
* @param string $delimiter The substring to find for explosion
* @param string $string The string to explode
* @param int $limit If specified, the maximum count of vector elements
* @return static
*/
public static function explode (string $delimiter, string $string,
int $limit = PHP_INT_MAX) : self {
// There is some discussion to know if this method belongs
// to Vector or OmniString.
//
// The advantage to keep it here is we can have constructs like:
// Vector::explode(",", "1,1,2,3,5,8,13")
// ->toIntegers()
// >map(function($n) { return $n * $n; })
// ->toArray();
//
// In this chaining, it is clear we manipulate Vector methods.
return (new OmniString($string))
->explode($delimiter, $limit);
}
public static function range (int $start, int $end, int $step = 1) : self {
return new Vector(range($start, $end, $step));
}
///
/// HOF :: specialized
///
public function toIntegers () : self {
array_walk($this->items, ArrayUtilities::toIntegerCallback());
return $this;
}
}

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